Using detailed data gathered during the record-setting flyby of #Arrokoth, the New Horizons team has made a significant advance in understanding planetesimals, reshaping our understanding of how planetary bodies form in solar systems across the universe. https://t.co/DSpfyxxHqt pic.twitter.com/j6HLEruKNj

— NASA New Horizons (@NASANewHorizons) February 13, 2020